Liquid pump



FIG. 1 is a right-side elevational view of a liquid pump showing our new design, the left-side elevational view being a mirror image;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a right-side/front/top perspective view thereof; and,

FIG. 7 is a right-side/rear/top perspective view thereof. 

We claim the ornamental design for liquid pump, as shown and described. 